PMID: 44933Jan 1, 1979

Effect of ruthenium on nitrogen fixation by some nitrogen fixers

Zentralblatt Für Bakteriologie, Parasitenkunde, Infektionskrankheiten Und Hygiene. Zweite Naturwissenschaftliche Abteilung: Mikrobiologie Der Landwirtschaft Der Technologie Und Des Umweltschutzes
K Bahadur, N Gaur

Abstract

The effect of ruthenium chloride in the culture media on the nitrogen-fixing ability of the three nitrogen fixers (unidentified species of Azotobacter, designated here as D3, B3, and B), isolated from Allahabad soil, was studied. It was observed that the nitrogen-fixing ability of the organisms is much increased in presence of 25-75 micro M concentration of ruthenium chloride in the culture media, while sugar consumption remains more or less steady. Also, if mg nitrogen fixed/g carbon consumed in two culture media with successive increasing concentrations of ruthenium chloride is compared by calculating the difference in increase of the amount of nitrogen fixed and carbon consumed in these two culture media, it was observed that high amounts of nitrogen are fixed by B3 and B between 25-50 micro M, and between 50-75 micro M concentration of ruthenium chloride by D3.

References

Apr 1, 1969·Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character·J Chatt

Related Concepts

Azotobacter
Vitreous Carbon
Hydrogen-Ion Concentration
Diazotrophy
Ruthenium
Soil Microbiology

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